Improvement in apparatus for bleaching and elevating cane-juice



J'. MILLER. APPARATUS FOR BLEACHIN'G AND ELEVATING CANE-JUICE No195,522. Patented Sept.25.1877.

A uqplzY N. PHERS, FHOTD-UTHOGRAFHER. WASnmGTON. n c,

UNITED STATES PATENT OEEIoE.

JAMES MILLER, OF BAYOU DES ALLEMAN D, LOUISIANA.

IMPROVEMENT IN APPARATUS FOR BLEACHING AND ELEVATING CANE-JUICE.

Specification forming part of Letters Patent No. 195,522, datedSeptember 25, 1877; application filed April 30, 1877.

To all whom it may concern:

Be it known that 1, JAMES MILLER, a resident of Bayou Des Allemand,parish of St. Charles, and State of Louisiana, have invented a certainnew and useful improvement in Defecatin g and Elevating Apparatus and Ido hereby declare the following to be a full,clear,

. and correct description of the same, reference being had to theannexed drawings, making a part of this specification.

This invention relates to an improved means for purifying sulphur-fumesand for bleaching and elevating cane-juice, 8110.

Its nature will be readily understood by referring to the accompanyingdrawings, whereon-- Figure lrepresentsa perspective view of my improvedapparatus. Fig. 2 is a vertical lougitudinal section, and Fig. 3 avertical crosssection, thereof.

A is a rectangular box, the interior of which is divided into twocompartments, B O, by a vertical longitudinal partition, D. The interiorof the lower end of this box is furnished with a curved plate, E, inwhich is operated, on a shaft, F, a series of wheels, G, which areprovided with paddle-blades h. These wheels are secured to the shaft F,so that the paddles of one may be a little in advance of the other,which arrangement enables the machine to be started with ease and runwith great velocity, even should the box become overcharged.

The water and juice are elevated and thrown forward in their respectivecompartments in a kind of mist, the water in this way purifying thefumes, which are introduced into the compartments 0 through a pipe, I.The fumes as purified pass up through a pipe, K,'in the top of thiscompartment, and are thereby conveyed to a point near the level of theshaft, where they are introduced into the compartment B, to act on thejuice while in a state of mist, and thus thoroughly bleach the same.

As the fumes by this process of purification are relieved of all, orvery nearly all, their acid,

the quantity of lime as heretofore used is greatly reduced, consequentlyleaving but little coloring matter in the juice, and thereby enablingthe operator to produce a bright and dry crystal sugar and a cleargolden-hued molasses.

L is a trough, which is provided with a side opening, through which thejuice enters the compartment B, and in which it should be retained at adepth of not over three inches, as too great a depth will cause thepaddles to throw off the juice in too heavy a body. M is a pipe throughwhich water is introduced into the compartment B, and N a pipe throughwhich it is withdrawn from the same. The height of water inthiscompartment should be about three inches, and it should beconstantly renewed, in order to carry off the acid as fast as it isseparated or extracted from the fumes.

The height of the curved plate E is made to suit the height and distanceto which the juice is to be thrown. At the top of the chamber is fitteda shelf, 0, with outwardprojecting trough P for catching the juice anddischarging it outside of the box.

To the outward-projecting end of the shaft F is fitted a pulley, R, towhich the power is applied for operating the wheels heretoforementioned.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

The box A, divided into compartments B O, curved plate E, shaft F,wheels G G, provided with paddle-blades h h, arranged as described,shelf 0, troughs L P, pipes I M N, and connecting pipe K, arranged asdescribed, the whole constructed and operating substantially as setforth.

In testimony whereof I have hereunto set my hand.

JAMES MILLER.

In presence of- HENRY PERRY, J. O. HUBBELL.

